← Vulnerability feed

Vulnerability record · CVE-2020-25789 · published 19 September 2020

CVE-2020-25789: Tt-rss tiny tiny rss cross-site scripting vulnerability

TTt Rss · Tiny Tiny Rss

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. The cached_url feature mishandles JavaScript inside an SVG document.

6.1 CVSS 3.1 Medium EPSS 0.88% · top 42.4% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
0.88%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. The cached_url feature mishandles JavaScript inside an SVG document.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.neagaru.com/p/exploiting-tiny-tiny-rss-2020
https://community.tt-rss.org/t/heads-up-several-vulnerabilities-fixed/3799 Vendor Advisory
https://git.tt-rss.org/fox/tt-rss/commit/da5af2fae091041cca27b24b6f0e69e4a6d0dc60 PatchVendor Advisory
https://community.tt-rss.org/t/heads-up-several-vulnerabilities-fixed/3799 Vendor Advisory
https://git.tt-rss.org/fox/tt-rss/commit/da5af2fae091041cca27b24b6f0e69e4a6d0dc60 PatchVendor Advisory

Track CVE-2020-25789 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-25787Tt-rss tiny tiny rss improper input validation vulnerabilityAn issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. It does not validate all URLs before requesting them.EPSS 18%9.8CVE-2017-16896Tt-rss tiny tiny rss sql injection vulnerabilityA SQL injection in classes/handler/public.php in the forgotpass component of Tiny Tiny RSS 17.4 exists via the login parameter.EPSS 1.5%8.1CVE-2020-25788Tt-rss tiny tiny rss inclusion from untrusted sphere vulnerabilityAn issue was discovered in Tiny Tiny RSS (aka tt-rss) before 2020-09-16. imgproxy in plugins/af_proxy_http/init.php mishandles $_REQUEST["url"] in an…EPSS 1.2%7.5CVE-2021-28373Tt-rss tiny tiny rss incorrect authorization vulnerabilityThe auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE…EPSS 0.93%6.1CVE-2017-1000035Tt-rss tiny tiny rss cross-site scripting vulnerabilityTiny Tiny RSS before 829d478f is vulnerable to XSS window.opener attackEPSS 0.89%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed

Source: NIST National Vulnerability Database (record CVE-2020-25789), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.